Global Patent Index - EP 3714332 A1

EP 3714332 A1 20200930 - TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE

Title (en)

TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE

Title (de)

TONER ZUM ENTWICKELN EINES ELEKTROSTATISCHEN LATENTEN BILDES

Title (fr)

TONER POUR DÉVELOPPER UNE IMAGE LATENTE ÉLECTROSTATIQUE

Publication

EP 3714332 A1 20200930 (EN)

Application

EP 18904120 A 20180726

Priority

  • KR 20180013618 A 20180202
  • KR 2018008449 W 20180726

Abstract (en)

[origin: WO2019151592A1] A toner for developing an electrostatic latent image includes a plurality of toner particles. Each of the plurality of toner particles includes an additive attached to a surface of the particle, such that, when the plurality of toner particles are measured by X-ray fluorescence (XRF) spectrometry, an X-ray fluorescence intensity of lanthanum [La] (unit: kcps) and an X-ray fluorescence intensity of strontium [Sr] (unit: kcps) measured by the XRF spectrometry of the toner satisfy the following conditions (1) and (2): 0.2 kcps < [La] < 2 kcps (1), and 100 kcps < [Sr] < 800 kcps (2).

IPC 8 full level

G03G 9/087 (2006.01); G03G 9/09 (2006.01); G03G 9/093 (2006.01); G03G 15/08 (2006.01)

CPC (source: EP KR US)

G03G 9/0819 (2013.01 - EP US); G03G 9/0821 (2013.01 - EP); G03G 9/087 (2013.01 - KR); G03G 9/08797 (2013.01 - KR); G03G 9/09 (2013.01 - KR); G03G 9/09307 (2013.01 - KR); G03G 9/0935 (2013.01 - KR); G03G 9/09708 (2013.01 - EP US); G03G 9/09716 (2013.01 - EP); G03G 9/09725 (2013.01 - EP); G03G 15/0808 (2013.01 - KR); G03G 15/0889 (2013.01 - KR US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

WO 2019151592 A1 20190808; EP 3714332 A1 20200930; EP 3714332 A4 20210804; KR 102330424 B1 20211124; KR 20190094043 A 20190812; US 11300893 B2 20220412; US 2021041797 A1 20210211

DOCDB simple family (application)

KR 2018008449 W 20180726; EP 18904120 A 20180726; KR 20180013618 A 20180202; US 201816966832 A 20180726